\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Elasticity/semi-elasticity of unemployment}
\begin{tabular}{l*{3}{c}}
\toprule
            &         HRS         &  BHPS/UKHLS         &        SOEP         \\
\midrule
Insecurity  &       1.153\sym{***}&       0.435\sym{***}&       0.527\sym{***}\\
            &    (0.0702)         &    (0.0268)         &    (0.0270)         \\
\midrule
\(N\)       &       41414         &       35558         &      269091         \\
\bottomrule
\multicolumn{4}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{4}{l}{\footnotesize \sym{*} \(p<0.05\), \sym{**} \(p<0.01\), \sym{***} \(p<0.001\)}\\
\end{tabular}
\end{table}
